If you believe England policies caused the potato famine you are even more of a conspiratorialist than I. They didn't.
What, in your opinion, did cause the potato famine?
God sent the blight but the English made the famine.
Did you know that by 1806, only 4% of all Irish land was owned by the Irish? When the potato crops failed, there was plenty of food in Ireland...but it belonged to the landlords in England, to whom it was shipped to feed English people and English armies.
If you aren't aware of English policies toward Ireland and the Irish and how they caused great social misery before, during, and after the "Great Famine", then you need to do some more reading. But if not for the English mistreatment of the Irish and the mass migration to America that resulted, America may not have gained some of the great leaders and workers we needed to attain our independence and build our country.